JP2015149664A - window monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a window monitoring system that enables a user to recognize whether the communication between a window sensor and a master unit can communicate with each other or not.SOLUTION: When at least one of an open/close state and a lock/unlock state of a window 4 is changed by manipulation, a window sensor 1 wirelessly transmits a state signal representing the detection result of the state. When receiving the state signal, a master unit 2 informs the detection result, and wirelessly sends an acknowledgement signal as a reply to the window sensor 1. The window sensor 1 has a communication unit 15 for receiving/transmitting a wireless signal, and an informing unit 16 for informing whether the communication with the master unit 2 is possible or not. The communication unit 15 waits for reception of an acknowledgement signal during a first period T1 from the transmission of the state signal. The informing unit 16 executes a first mode for outputting a first informing sound when the communication unit 15 receives an acknowledgement signal within the first period T1, and executes a second mode for outputting a second informing sound different from the first informing sound when the communication unit 15 does not receive any acknowledgement signal within the first period T1.

Description

  The present invention relates to a window monitoring system for monitoring the state of a window.

  2. Description of the Related Art Conventionally, a window sensor that detects an open / closed state and a locked / unlocked state of a window has been provided (see, for example, Patent Document 1). This type of window sensor detects the open / closed state of the window and the unlocked / unlocked state, and transmits the detection result to the parent device by a radio signal. Then, the open / closed state and the unlocked state of the window can be confirmed on the monitor of the master unit.

JP2013-44217A

  However, in wireless communication, the communicable area varies depending on the environment. For this reason, when the base unit cannot receive a radio signal from the window sensor, the base unit cannot accurately grasp the state of the window, and security cannot be ensured. Therefore, the user needs to recognize whether communication is possible between the window sensor and the parent device.

  The present invention has been made in view of the above reasons, and an object of the present invention is to provide a window monitoring system in which a user can recognize whether or not communication between a window sensor and a parent device is possible.

  The window monitoring system of the present invention includes a window sensor that wirelessly transmits a state signal indicating a detection result of the state when at least one of a window open / close state and a locked / unlocked state is changed by an operation, and the state signal When received, the detection unit is notified of the detection result, and a master unit that wirelessly returns a confirmation signal to the window sensor, and the window sensor notifies the communication unit that transmits and receives a radio signal and whether or not communication with the master unit is possible. A notification unit, wherein the communication unit waits for reception of the confirmation signal for a predetermined period after transmitting the status signal, and the notification unit is configured so that the communication unit performs the confirmation within the predetermined period. When the signal is received, a first mode for outputting a first notification sound is executed.

  In the window monitoring system, the notification unit outputs a second notification sound different from the first notification sound when the communication unit does not receive the confirmation signal within the predetermined period. Is preferably performed.

  In this window monitoring system, the communication unit transmits a survival confirmation signal at a preset timing, and the notification unit stops the second mode when the communication unit transmits the survival confirmation signal, When the master unit does not receive the survival confirmation signal within a preset period, it is preferable to notify that the communication with the window sensor is not possible.

  In this window monitoring system, it is preferable that the window sensor includes an alarm stop unit that stops the second mode by an operation input.

  In this window monitoring system, the base unit includes an input unit to which information indicating that communication with the window sensor is impossible is input from an operating device, and when the information is input to the input unit, the window sensor It is preferable to cancel the display when the communication unit receives a radio signal from the window sensor.

  As described above, in the present invention, after the window sensor transmits the status signal, it is notified whether or not the confirmation signal from the parent device has been received, so that the user recognizes whether the window sensor and the parent device can communicate with each other. There is an effect that can be done.

It is a block block diagram of the window sensor of embodiment. It is a block block diagram of the main | base station of embodiment. It is a schematic block diagram of the window monitoring system of embodiment. It is a schematic block diagram of the window sensor of embodiment. It is a sequence diagram of an embodiment. It is a sequence diagram of an embodiment. It is a sequence diagram of an embodiment. It is a figure which shows the display at the time of communication impossible in the monitor of the main | base station of embodiment. It is a figure which shows the display at the time of the communication normal in the monitor of the main | base station of embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment)
The window monitoring system of this embodiment includes a window sensor 1 and a parent device 2 (see FIG. 3). When at least one of the open / closed state and the unlocked / unlocked state of the window 4 is changed by the operation, the window sensor 1 wirelessly transmits a state signal indicating a detection result of the state. When the base unit 2 receives the status signal, the base unit 2 notifies the detection result, and returns a confirmation signal to the window sensor 1 wirelessly. Moreover, the window sensor 1 has the communication part 15 which transmits / receives a radio signal, and the alerting | reporting part 16 which alert | reports the communication possibility with the main | base station 2 (refer FIG. 1). The communication unit 15 waits for reception of a confirmation signal during a predetermined period (first period T1) after transmitting the status signal. The notification unit 16 executes a first mode in which a first notification sound is output when the communication unit 15 receives a confirmation signal within the first period T1, and the communication unit 15 performs a confirmation signal within the first period T1. Is not received, a second mode for outputting a second notification sound different from the first notification sound is executed.

  Hereinafter, the window monitoring system of the present embodiment will be described in detail.

  As shown in FIG. 3, the window sensor 1 is attached to a sliding-type window 4 provided with a crescent lock 3 and detects an open / closed state of the window 4 and a locked / unlocked state of the crescent lock 3. When the opening / closing state or the unlocking / unlocking state of the window 4 is changed by a user operation, the window sensor 1 transmits a state signal indicating a detection result to the base unit 2 using a radio signal using a radio wave as a transmission medium. The base unit 2 includes a monitor 21 and receives a status signal transmitted from the window sensor 1. And the main | base station 2 displays the opening / closing state of the window 4 and the locking / unlocking state which the received status signal shows on the monitor 21, and notifies a user. A plurality of window sensors 1 can be associated with one base unit 2. Identification information of the window sensor 1 is added to the radio signal transmitted by the window sensor 1, and the master unit 2 can display the open / closed state and the unlocked / unlocked state of each window 4 to which the window sensor 1 is attached. . Moreover, as shown in FIG. 3, the window sensor 1 is set to the main | base station 2 by making the place (for example, living room 1, living room 2, bedroom 1, etc.) to which it is attached. Thereby, the user can easily recognize which window 4 the open / close state and the unlocked state of the window 4 displayed on the monitor 21 of the parent device 2 indicate. In addition, the main | base station 2 may use the thing for exclusive use of the window sensor 1, and may use the controller of HEMS (Home Energy Management System).

  The crescent lock 3 includes a lock body 31 fixed to one window frame 41 of the window 4 and a crescent receiver 32 fixed to the other window frame 41. The lock body 31 includes a rectangular parallelepiped pedestal 33, a half-moon shaped crescent portion 34 provided to be rotatable with respect to the pedestal 33, and a rectangular parallelepiped shaped operation lever 35 connected to one end of the crescent portion 34. When the operation lever 35 is positioned on the crescent portion 34 by rotating the crescent portion 34 with the operation lever 35, the crescent portion 34 is coupled to the crescent receiver 32 and the crescent lock 3 is locked. Become. On the other hand, when the operation lever 35 is located under the crescent portion 34, the coupling between the crescent portion 34 and the crescent receiver 32 is released, and the crescent lock 3 is unlocked. The position of the operation lever 35 when the crescent lock 3 is in the locked state is referred to as a locked position, and the position of the operation lever 35 when the crescent lock 3 is in the unlocked state is referred to as an unlocked position.

  The window sensor 1 includes a sensor body 10 attached to the window frame above the lock body, a first magnet 131 attached to the window glass, and a second magnet 141 attached to the operation lever 35. FIG. 4 shows a schematic configuration diagram of the window sensor 1. Inside the sensor body 10, a battery 11, a microcontroller 12 (hereinafter abbreviated as a microcomputer 12), a window opening / closing detection unit 13, and a lock / unlock detection unit 14 are provided.

  The battery 11 is composed of a coin-type lithium battery and functions as a power source for the window sensor 1.

  The window opening / closing detection unit 13 includes a magnetoresistive element (MR (Magneto Resistance) element), a Hall element, and the like, and detects an electrical signal corresponding to the strength of the received magnetic field when power is supplied from the battery 11. The signal is output to the microcomputer 12 as a signal. The first magnet 131 is attached to the window glass 42. When the window 4 is in the closed position, the distance from the window opening / closing detection unit 13 is shortened, and when the window 4 is in the open position, the window opening / closing detection unit. 13 is arranged at a position where the distance from the terminal 13 becomes longer.

  The microcomputer 12 includes an open / close determining unit 121 that determines an open / closed state of the window 4 based on a detection signal output from the window open / close detecting unit 13. The opening / closing determination unit 121 compares the detection signal output from the window opening / closing detection unit 13 with a predetermined threshold value, and determines the opening / closing state of the window 4. When the window 4 is in the closed position, the first magnet 131 is close to the window opening / closing detection unit 13, so that the detection signal exceeds the threshold value, and the opening / closing determination unit 121 determines that the window 4 is in the closed state. On the other hand, when the window 4 is in the open position, the first magnet 131 is located away from the window opening / closing detection unit 13, so the detection signal falls below the threshold value, and the opening / closing determination unit 121 determines that the window 4 is in the open state. to decide. Further, a pair of first yokes 132 is provided so as to sandwich the window opening / closing detection unit from the vertical direction in FIG. The pair of first yokes 132 efficiently transmits the magnetic flux emitted from the first magnet 131 to the window opening / closing detection unit 13 when the window 4 is in the closed position, thereby improving the detection accuracy of the opening / closing state of the window 4. Can be made.

  The locking / unlocking detection unit 14 includes a magnetoresistive element (MR (Magneto Resistance) element), a Hall element, and the like, and detects an electric signal corresponding to the strength of the received magnetic field when power is supplied from the battery 11. The signal is output to the microcomputer 12 as a signal. The second magnet 141 is attached to the operation lever 35. When the crescent lock 3 is in the locking position, the distance from the locking / unlocking detection unit 14 is shortened, and the second magnet 141 is unlocked when the crescent lock 3 is in the unlocking position. The distance from the lock detection unit 14 is increased.

  The microcomputer 12 includes a locking / unlocking determination unit 122 that determines a locking / unlocking state of the crescent lock 3 based on a detection signal output from the locking / unlocking detection unit 14. The locking / unlocking determination unit 122 compares the detection signal output from the locking / unlocking detection unit 14 with a predetermined threshold value, and determines the locking / unlocking state of the crescent lock 3. When the crescent lock 3 is in the locked position, the detection signal exceeds the threshold value because the second magnet 141 is close to the lock / unlock detection unit 14, and the lock / unlock determination unit 122 indicates that the crescent lock 3 is in the locked state. to decide. On the other hand, when the crescent lock 3 is in the unlocking position, the second magnet 141 is located away from the locking / unlocking detection unit 14, so the detection signal falls below the threshold value, and the locking / unlocking determination unit 122 causes the crescent lock 3 to unlock. Judged to be in a locked state. Further, a pair of first yokes 142 is provided so as to sandwich the locking / unlocking detection unit 14 from the left-right direction in FIG. The pair of first yokes 142 efficiently transmits the magnetic flux emitted from the second magnet 141 to the locking / unlocking detection unit 14 when the crescent lock 3 is in the locking position, and detects the locking / unlocking state of the crescent lock 3. Accuracy can be improved.

  Next, specific configurations of the window sensor 1 and the base unit 2 will be described with reference to the block configuration diagrams shown in FIGS.

  In the window sensor 1, in addition to the battery 11, the microcomputer 12, the window opening / closing detection unit 13, and the lock / unlock detection unit 14 described above, a communication unit 15 and a notification unit 16 are provided in the sensor body 10.

  The communication unit 15 includes a communication interface that transmits and receives wireless signals, and transmits and receives wireless signals to and from the parent device 2. When the opening / closing state or locking / unlocking state of the window 4 is changed by a user operation, the microcomputer 12 transmits a state signal indicating the opening / closing state or locking / unlocking state of the window 4 using the communication unit 15.

  The notification unit 16 includes a buzzer (not shown) and a drive circuit that sounds a buzzer, and notifies whether communication with the parent device 2 is possible. When the communication with the parent device 2 is normal (possible), the notification unit 16 executes the first mode in which a first notification sound (for example, a “beep” sound) is output. On the other hand, when the communication with the base unit 2 is abnormal (impossible), the notification unit 16 outputs a second notification sound different from the first notification sound (for example, an intermittent sound with a one-second cycle called “beep”). The second mode is executed. Note that the first notification sound is completed in a short period, while the second notification sound continues to sound until the second mode is stopped.

  The base unit 2 includes a monitor 21, a control unit 22, a communication unit 23, and a power supply circuit 24.

  The base unit 2 uses the commercial power supply E1 as an input power supply, and the power supply circuit 24 converts the supply voltage from the commercial power supply E1 into a predetermined voltage and outputs it. The communication unit 23 includes a communication interface that transmits and receives wireless signals, and transmits and receives wireless signals to and from the window sensor 1. When the control unit 22 is configured by a microcontroller and receives a status signal from the window sensor 1 via the communication unit 23, the control unit 22 displays the open / closed state and the unlocked / unlocked state of the window 4 indicated by the status signal on the monitor 21. (See FIG. 3). Further, when receiving the status signal from the window sensor 1, the control unit 22 returns a confirmation signal indicating that the status signal has been correctly received to the window sensor 1 using the communication unit 23.

  Further, the microcomputer 12 of the window sensor 1 includes a notification control unit 123 that controls the notification unit 16, and the operation mode (first mode) of the notification unit 16 depends on whether the communication unit 15 has received a confirmation signal. , Second mode).

  The operation of the notification unit 16 will be described with reference to the sequence diagrams shown in FIGS.

  First, the case where the communication state between the window sensor 1 and the parent device 2 is normal will be described using the sequence diagram shown in FIG.

  When the opening / closing state or the unlocking / unlocking state of the window 4 is changed by a user operation, a state signal is transmitted from the communication unit 15 of the window sensor 1. And the communication part 15 waits for reception of the confirmation signal sent in response from the main | base station 2 during the predetermined period (1st period T1) after transmitting a status signal. When the base unit 2 normally receives the status signal, the base unit 2 displays the status of the window 4 on the monitor 21 and returns a confirmation signal. When the communication unit 15 receives the confirmation signal within the first period T1, the notification control unit 123 outputs the first notification sound by causing the notification unit 16 to execute in the first mode. Moreover, the communication part 15 cancels | releases reception waiting, when a confirmation signal is received. The first period T1 is set based on the processing speed of the base unit 2, and a relatively short period such as 1 second is set.

  By listening to the first notification sound, the user can recognize that the communication between the window sensor 1 and the parent device 2 is normal and the state of the window 4 has been normally notified to the parent device 2, The display on the monitor 21 of the parent device 2 can be trusted.

  Next, a case where communication between the window sensor 1 and the parent device 2 is impossible will be described using the sequence diagram shown in FIG. When the parent device 2 cannot normally receive the status signal due to the communication environment, the confirmation signal is not returned from the parent device 2. When the communication unit 15 does not receive the confirmation signal within the first period T1, the notification control unit 123 starts the output of the second notification sound by causing the notification unit 16 to execute in the second mode. Is done. When the communication unit 15 does not receive the confirmation signal within the first period T1, the communication unit 15 retransmits the status signal and continues to wait for reception of the confirmation signal. Thereafter, the communication unit 15 repeats the retransmission of the state signal with the first period T1 as a cycle until the communication unit 15 receives the confirmation signal. When the status signal normally reaches the base unit 2 and the communication unit 15 receives the confirmation signal, the notification control unit 123 stops the second mode and ends the second notification sound. At this time, the notification unit 16 may execute the first mode to output the first notification sound.

  By listening to the second notification sound, the user can recognize that the communication between the window sensor 1 and the parent device 2 is abnormal and the state of the window 4 is not normally notified to the parent device 2. .

  As described above, the window monitoring system according to the present embodiment is configured to provide a notification sound (first notification sound, first notification sound) indicating whether communication is possible or not based on whether the window sensor 1 has received the confirmation signal returned from the parent device 2. 2) is output from the window sensor 1. Therefore, the user can recognize whether or not communication between the window sensor 1 and the parent device 2 is possible by listening to the notification sound, and can also determine whether or not the display content of the monitor 21 of the parent device 2 can be trusted. .

  In addition, notification by sound (first and second notification sounds) is performed within a relatively short first period T1 after the user opens / closes or locks / unlocks the window 4. That is, since the first and second notification sounds are output in the immediate vicinity, the user can easily recognize the sound and can easily recognize whether communication is possible without looking at the window sensor 1.

  The window sensor 1 waits for reception of the confirmation signal only during the first period T1 after transmitting the status signal. Therefore, compared with the case where the communication part 15 always waits for reception of a confirmation signal, power consumption can be reduced and the replacement cost of the battery 11 and the effort of replacement | exchange can be suppressed.

  Next, as a first alternative configuration of the present embodiment, as shown in FIG. 7, the window sensor 1 is set in advance even when the opening / closing state and the unlocking / unlocking state of the window 4 are not changed. You may comprise so that the survival confirmation signal which shows the opening / closing state of a window 4 and a locking / unlocking state may be transmitted at a timing. The microcomputer 12 transmits a survival confirmation signal using the communication unit 15 with the second period T2 (for example, 1 hour) as a cycle. In addition, when the notification unit 16 is executing the second mode when the survival confirmation signal is transmitted, the notification control unit 123 stops the second mode and ends the second notification sound.

  The master unit 2 includes a counter (not shown). The counter counts the time from the last reception of the survival confirmation signal to the present, and the count value is reset when the survival confirmation signal is received. Then, when the count value of the counter exceeds the third period T3 set longer than the second period T2, the control unit 22 determines that communication with the window sensor 1 is impossible, and causes the monitor 21 to detect the window sensor. 1 is displayed (see FIG. 8). In the illustrated example of FIG. 8, “abnormal” indicating that communication with the window sensor 1 provided in “bedroom 1” is impossible is displayed on the monitor 21. And the control part 22 cancels | releases the display which shows that it cannot communicate with the window sensor 1, when abnormality in communication with the window sensor 1 is eliminated and a status signal or a survival confirmation signal is received, and the current window 4 The open / close state and the unlocked / unlocked state are displayed on the monitor 21 (see FIG. 9). In addition to displaying on the monitor 21 as a configuration for notifying that the communication with the window sensor 1 is not possible, the base unit 2 uses, for example, a notification using light by turning on an LED (Light Emitting Diode) or a buzzer. The structure which performs the alerting | reporting using the sound by ringing may be sufficient.

  Accordingly, the user can recognize that communication with the window sensor 1 is impossible by visually observing the monitor 21 of the parent device 2. Further, by displaying on the monitor 21 of the base unit 2 that communication with the window sensor 1 is impossible, communication with the window sensor 1 is not possible even for users other than the user who has heard the second notification sound (for example, a family member). Can be recognized.

  Moreover, since the 2nd alerting | reporting sound is stopped when the window sensor 1 transmits the survival confirmation signal, it can prevent the discomfort by continuing a sound, for example, while sleeping. Further, when the communication abnormality is resolved and the base unit 2 receives the status signal or the survival confirmation signal, the current state of the window 4 is automatically displayed, so that convenience is improved.

  Further, as a second separate configuration of the present embodiment, the base unit 2 has an input unit 25 to which information indicating that communication with the window sensor 1 is impossible is input from an operating device (for example, a touch panel, a button, a remote controller, etc.) (See FIG. 2). For example, when the user hears the second notification sound, information indicating that communication with the window sensor 1 is not possible is input to the input unit 25 by the user's manual operation until the survival confirmation signal is transmitted. The When information indicating that communication with the window sensor 1 is not possible is input to the input unit 25, the control unit 22 displays on the monitor 21 that communication with the window sensor 1 is not possible (see FIG. 8). Then, when the communication abnormality with the window sensor 1 is resolved and the control unit 22 receives a wireless signal (status signal or survival confirmation signal) from the window sensor 1, a display indicating that communication with the window sensor 1 is impossible. Is released, and the current open / closed state and unlocked state of the window 4 are displayed (see FIG. 9). Moreover, the window sensor 1 may be provided with the alarm stop part 17 which stops a 2nd mode by a user's operation input, and complete | finishes the output of a 2nd alerting | reporting sound (refer FIG. 1). When the user listens to the second notification sound and inputs information indicating that communication with the window sensor 1 is impossible to the base unit 2, the second notification sound can be stopped. It is possible to prevent discomfort caused by the continuous sound of the notification sound.

DESCRIPTION OF SYMBOLS 1 Window sensor 11 Battery 12 Microcomputer 13 Window opening / closing detection part 14 Locking / unlocking detection part 15 Communication part 16 Notification part 2 Main | base station 21 Monitor

Claims (5)

A window sensor that wirelessly transmits a status signal indicating a detection result of the state when at least one of the open / closed state of the window and the unlocked / unlocked state is changed by operation;
When the status signal is received, the detection result is notified, and a master unit is provided that wirelessly returns a confirmation signal to the window sensor,
The window sensor is
A communication unit for transmitting and receiving wireless signals;
A notification unit for notifying whether or not communication with the base unit is possible;
The communication unit waits for reception of the confirmation signal for a predetermined period after transmitting the status signal,
The window monitoring system, wherein the notification unit executes a first mode in which a first notification sound is output when the communication unit receives the confirmation signal within the predetermined period. The notification unit executes a second mode in which a second notification sound different from the first notification sound is output when the communication unit does not receive the confirmation signal within the predetermined period. The window monitoring system according to claim 1. The communication unit transmits a survival confirmation signal at a preset timing,
The notification unit stops the second mode when the communication unit transmits the survival confirmation signal,
3. The window monitoring system according to claim 2, wherein, when the base unit does not receive the survival confirmation signal within a preset period, the base unit notifies that communication with the window sensor is impossible. The window monitoring system according to claim 2, wherein the window sensor includes an alarm stop unit that stops the second mode by an operation input. The base unit includes an input unit through which information indicating that communication with the window sensor is impossible is input from an operating device, and communication with the window sensor is not possible when the information is input to the input unit. 5. The window monitoring system according to claim 1, wherein, when the communication unit receives a wireless signal from the window sensor, the display is canceled. .

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